András Győri created YARN-11211:
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Summary: QueueMetrics leaks Configuration objects when validation
API is called multiple times
Key: YARN-11211
URL: https://issues.apache.org/jira/browse/YARN-11211
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Reporter: András Győri
Assignee: András Győri
QueueMetrics#QUEUE_METRICS is a static map, which is a source of multiple bugs
eg. YARN-11152.
The current scenario could be reproduced by adding queues one at a time via the
mutation API.
# Validate adding queue1 via validation API
# Validation API instantiates a new CS, with a new Configuration, that
instantiates a ConfigurationProperties
# QueueMetrics does share the same QUEUE_METRICS cache with the original CS,
where there is now a Metrics object that belongs to the new CS
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